Improvement in carbureters



PATENT FFICE.

THOMAS B. FOGARTY, OF WARREN, MASSACHUSETTS. l

IMPROVEMENT IN CARBURETERS.

Specification forming part of Letters Patent No. 135,981, dated February 18, 1873.

machines.

In gas-machines in which a cock or valve is made to shutoft'the `supply of gasoline automaticallyitis essential that the valve should make a tight joint, and that it should be constructed so as to bel capable of being entirely opened or closed a slight movement ofthe actuating lever or handle. The ordinary globe-valve does not supply this want, because it requires four or live complete turns ofthe stein to open or close it entirely, and, as ordinarily constructed,the valve-opening is so large that when tlie- Vvalve rests upon its seat it neces sarily bears upon a large surface, and consequently requires the application of considerable force to close it tightly; in addition to which it requires frequent packing around the ste-m, which is apt to be neglected by the in experienced, and the consequence is a leak ot gasoline, and probably a lire.

It is' to obviate the above defects that I have devised the new and improved valve which I am about 'to describe, and which is shown full size in the annexed drawing.

Figure l is a vertical longitudinal section'.

Fig. 2 is a horizontal longitudinal section of Fig.' l, showing sections thereof at the dotted lines A and B in the same plane. Fig. 3 is a plan ot' the valve D, Figs. 1 and 2.

In all the gures the same letters refer to the same parts.

C is the body of the valve, provided at E with a seat, against which the valve D bears, so as to form atiglit joint when the'valve is closed. D is liuted at the sides at a and a', Fig. 3, and is slotted at b to receive the lever F. This lever is actuated by the rock-shaft G, which passes through it. and at its outer A end carries the lever or handle H. It is evident that a very slight motion of this lever must completely open or close the valve. In order to dispense with the use ot' a stuffingbox and packing around the stem of the rockshat't (Jr, I provide it with a shoulder, I, ground tight into and working against a seat on the inner side of the plug J, against which 'it is pressed, so as to make a tight joint, by the set-screw H, provided with the lock-nut M, and the whole covered by the cap O, so as to prevent the possibility of leakage around the nut or screw.

I claim- In automatic regulating carbureters or gasmachines, a gasoline-si'ipply valve, constructed substantially as described.

THOS. B. FOGARTY. Witnesses.:

S. H. SIBLEY, W.'H. FMRBANK. 

